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HCS12 数据表(PDF) 84 Page - Freescale Semiconductor, Inc |
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HCS12 数据表(HTML) 84 Page - Freescale Semiconductor, Inc |
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84 / 452 page ![]() S12CPUV2 Reference Manual, Rev. 4.0 84 Freescale Semiconductor 5.26 Condition Code Instructions Condition code instructions are special forms of mathematical and data transfer instructions that can be used to change the condition code register. Table 5-26 shows instructions that can be used to manipulate the CCR. Table 5-26. Condition Code Instructions Mnemonic Function Operation ANDCC Logical AND CCR with memory (CCR) • (M) ⇒ CCR CLC Clear C bit 0 ⇒ C CLI Clear I bit 0 ⇒ I CLV Clear V bit 0 ⇒ V ORCC Logical OR CCR with memory (CCR) + (M) ⇒ CCR PSHC Push CCR onto stack (SP) – 1 ⇒ SP; (CCR) ⇒ M(SP) PULC Pull CCR from stack (M(SP)) ⇒ CCR; (SP) + 1 ⇒ SP SEC Set C bit 1 ⇒ C SEI Set I bit 1 ⇒ I SEV Set V bit 1 ⇒ V TAP Transfer A to CCR (A) ⇒ CCR TPA Transfer CCR to A (CCR) ⇒ A |
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